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I <br /> i <br /> WELL CONCENTRATIONS <br /> Shell-branded Service Station <br /> 2575 Country Club <br /> Stockton, CA <br /> Wic #204-7524-3505 <br /> MTBE MTBE Depth to GW SPH <br /> Well ID Date TPPH I B T E X 8020 8260 TOC Water Elevation Thickness <br /> (uglL) i (ug/L) (uglL) (ug/L) (uglL) (ug/L) (ug/L) (MSL} (ft )I (MSL) (ft } <br /> I <br /> Abbreviations <br /> I <br /> TPPH =Total petroleum hydrocarbons as gasoline by modified EPA Method 8015 <br /> BTEX= benzene,toluene, ethylbenzene,xylenes by EPA Method 8020 <br /> MTBE = methyl-tertiary-butyl ether <br /> TOC=Top of Casing Elevation <br /> SPH = Separate-Phase Hydrocarbons <br /> GW= Groundwater <br /> ug/L= parts per billion <br /> msl = Mean sea level <br /> ft= Feet <br /> <n = Below detection limit I <br /> D= Duplicate sample <br /> Notes <br /> a = Depth to ground water measurement and reference elevation datum Is top of boot(adapted for vapor extraction)at well head <br /> Warman Pier well elevation referenced from Survey Marker <br /> Port= Indicates ground water sample collected at the well head sampling ro rt <br /> Down= Indicates ground water sample collected inside the well with a bailer <br /> b= Not sampled due to insufficient water capacity on the truck <br /> I <br /> PajWI <br />